Here is a challenging motion problem about two different length trains and how long it takes them to pass each other going in the same direction and opposite directions. At first glance, there doesnÕt seem to be enough information given...

These types of problems cause many people to be distressed over algebra. In this video, Sal looks at a problem where three people, each at set distances apart, are traveling at different constant speeds. We need to know how long it will...

This video introduces the basics of trigonometry. It starts by defining a right triangle and showing two different examples of finding the ratios of sine, cosine, and tangent using the SOH-CAH-TOA mnemonic. This resource could be used as...

Sal begins this video by "massaging the equations slightly to prepare them for elimination." The equations won't be the only relaxed part of this lesson, which introduces the concept of multiplication to systems of equations. Viewers...

Elimination is another method for solving systems of equations, in addition to graphing and substitution. Sal's lecture is straightforward to understand, even for students who struggle with learning. By having a variety of options when...

Another method for solving systems of equations, in addition to graphing, is the focus of this video, as Sal demonstrates the substitution method. It's important to understand that there is more than one way to solve any problem,...

Sal teaches how to use graphing as a tool, not a hindrance, in this helpful video. His lecture would make a good resource for your algebra class, particularly as the focus shifts to graphing problems and linear systems.

Sal uses the elimination method to simplify a system of three variables. Next, he employs the substitution method to check his solution. This resource would nicely complement any lesson on this topic.

Sal evaluates a word problem and then solves it by graphing systems of equations. This problem would be significant as a daily challenge, as a concept review, or as a homework assignment. Show this video only after the students have had...

Find the intersections. Individuals watch an informative video to review solving linear equations and use the similar methods to solve a system with one linear and one quadratic equation. Using a graphing calculator, scholars then find...

Systematically take an algebraic approach. Learners view an informative video that works four examples of solving a system of equations using substitution. The presenter works through the process of finding the solutions for each system....

Make the connection between the intersection of two functions and a system of equations. The class watches an informative algebra video on finding the point of intersection of two linear functions. The presenter shows the steps to prove...